MoDisco/SimpleTransformationChain

The goal of SimpleTransformationsChain plugin aims at gathering the infrastructure and technologies plugins and at providing orchestration of these plugins. These additional facilities reuse the features offered by the other plugins in order to allow performing more elaborate operations and complex tasks, such as directly generating a UML model from a Java project.

Contextual menu

You can launch the “Discover UML model from Java project” action from a Java project by right-clicking on the corresponding Java project (into your workspace) and then selecting the appropriate action in the provided contextual menu.

Launch configuration

The SimpleTransformationsChain plugin is conform to Discoverer extension point, so in launch configurations, you are able to create a discoverer launcher dedicated to a project.

Java API

To use programmatically the SimpleTransformationsChain plugin, you will have to instantiate the class ModelplexKnowledgeDiscoveryFramework and use following method:

Team

Install

To install this plugin, you will have to retrieve it and its dependencies from MoDisco SVN.
All following bundles are available in folder "plugins/trunk":

org.eclipse.gmt.modisco.modelplex

org.eclipse.gmt.modisco.kdm.uml2converter

org.eclipse.gmt.modisco.j2se5

org.eclipse.gmt.modisco.j2se5.discoverer

org.eclipse.gmt.modisco.kdm

org.eclipse.gmt.modisco.common.core

User manual

To illustrate SimpleTransformationsChain plugin, we will use a sample inspired from the Pet Store Application.

Get and install use case

The models are available from MoDisco SVN (how to...) in subdirectory "examples/trunk/org.eclipse.gmt.modisco.usecase.simpletransformationschain" or from downloadable archive. If you use a SVN client in eclipse (Subversive or Subclipse), the project will be immediately available in your Eclipse workspace.

Sources of Pet Store application are available from Sun downloads.
You may have to download several libraries to obtain an eclipse project without errors (JPA, JTA, JSF-apis and Servlets-jsp-apis).
A complete bundle is also available from Mia-Software...
To view this application in your Eclipse workspace, you will have to extract content of this archive, and use the "import" wizard (import project in workspace).

Get the UML model of Pet Store application

We will explains different ways to get the UML model, it will demonstrate how several simple steps have been combined to build a complex task : discover a UML model from a java project.

Basic way

It exists several tools that are each able to perform a specific task, we will see how each task works.

Get the java model

Open the "Run configurations..." dialog.
Then, press the "New" button to create a configuration of type "MoDisco Discoverers".

Enter a name for this configuration, "PetStore reverse to J2SE5 model" for example.
Select Discoverer kind "Discover J2SE5 model from java project".
Enter path to the project of PetStore application.

Finally, press "Run" button to get the J2SE5 model.

You could also use the the contextual menu (right click) when the project of Pet Store application is selected. Navigate in MoDisco/java menus, click on "Discover J2SE5 model from java project" menu item.

Get the KDM model

Using the ATL transformation J2SE5toKDM, we will transform the J2SE5 model into a KDM model. We have to configure another configuration to perform such transformation.

Open the "Run configurations..." dialog. Then, press the "New" button to create a configuration of type "ATL Transformation".

Enter a name for this configuration, "Java to Kdm transformation" for example. Select ATL module in your workspace, "/Transformations/JavaToKdm.atl" for example. Select metamodels uris from EMF Registry (http://www.eclipse.org/MoDisco/J2SE5 and http://www.eclipse.org/MoDisco/kdm/action). Select source model in your workspace, and enter a path for your target model.

Finally, press "Run" button to get the KDM model.

You could also use the the contextual menu (right click) when the j2se5 model of Pet Store application is selected. Navigate in MoDisco menu, click on "Discover KDM model from J2SE5 model" menu item.

Get the UML model

Using the ATL transformation KDMtoUML, we will transform the KDM model into a UML model.
We have to configure another configuration to perform such transformation.

Open the "Run configurations..." dialog.
Then, press the "New" button to create a configuration of type "ATL Transformation".

Enter a name for this configuration, "Kdm to Uml transformation" for example.
Select ATL module in your workspace, "/Transformations/KdmToUml.atl" for example.
Select metamodels uris from EMF Registry ( http://www.eclipse.org/MoDisco/kdm/action and http://www.eclipse.org/uml2/2.1.0/UML).
Select source model in your workspace, and enter a path for your target model.

Finally, press "Run" button to get the UML model.

You could also use the the contextual menu (right click) when the kdm model of Pet Store application is selected. Navigate in MoDisco menu, click on "Discover UML model from KDM model" menu item.

Initialize a workflow

To be able to chain previous tasks, MoDisco a workflow initializer.

Open the "Run configurations..." dialog.
Then, press the "New" button to create a configuration of type "MoDisco Workflow".

Enter a name for this configuration, "Discovery of PetStore application" for example.
Then, press the "Load..." button to successively add "PetStore reverse to J2SE5 model" configuration, "Java to Kdm transformation" configuration and "Kdm to Uml transformation" configuration.

Finally, press "Run" button to get the UML model.
This is a first way to get a Uml model from a java application, however when parameters change (the selected java application, target uml model, ...), you will have to change it in different configurations and check coherency of all steps.

SimpleTransformationsChain way

Open the "Run configurations..." dialog.
Then, press the "New" button to create a configuration of type "MoDisco Discoverers".

Enter a name for this configuration, "PetStore reverse to UML model" for example.
Select Discoverer kind "Discover UML model from java project".
Enter path to the project of PetStore application.

Finally, press "Run" button to get the UML model.

You could also use the the contextual menu (right click) when the project of Pet Store application is selected. Navigate in MoDisco/java menus, click on "Discover UML model from java project" menu item.

Visualize the UML model

There is different possibility to visualize the target model, and explore informations located in.

Using MoDisco model browser

The MoDisco model browser show basically the model as a tree. It proposes a view of all instances sorted by metaclass, and offer the possibility to visualize all links in model (empty or not, cardinality, etc.).